I'm currently using a Plutoneium Chi Wah Wah with my AX8 and was considering replacing it with a Fractal EV1 to give me more flexibility but i really wasn't up for the size of the EV1. I was in a music store owned by a mate and was talking about it and he suggested the Hotone Soulpress... my concern was whether it would give me a full sweep of the range as my experience is that the AxeFX's can be a little 'fussy'... I gotta say, this thing is awesome! It is very small (which suits me perfectly), it calibrated perfectly to sweep the entire range and it feels really great. It has a 3 way switch Volume/Wah/Expression so you can use it for whatever you like, but for me, the Expression function means that i don't need to use a power supply and in turn it increases the functionality of the AX8 over using my Chi Wah Wah. So if anyone is in the market for a compact Wah/Expression pedal, definitely check out the Soulpress!